001    /*
002     * Copyright 2001-2004 The Apache Software Foundation
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     *     http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.apache.commons.cache;
017    
018    import java.io.Serializable;
019    
020    /**
021     * A base {@link StorageListener} implementation,
022     * defining all methods as no-ops.
023     *
024     * @version $Id: BaseStorageListener.java 155435 2005-02-26 13:17:27Z dirkv $
025     * @author Rodney Waldhoff
026     */
027    public class BaseStorageListener implements StorageListener {
028      public void storeRequested(Serializable key, Serializable val, Long expiresAt, Long cost, Serializable group) { }
029      public void stored(Serializable key, Serializable val, Long expiresAt, Long cost, Serializable group) { }
030      public void notStored(Serializable key, Serializable val, Long expiresAt, Long cost, Serializable group) { }
031      public void cleared(Serializable key) { }
032      public void cleared() { }
033    }